This morning, a bizarre video went viral on Twitter: it showed over a dozen turkeys endlessly circling a dead cat in the middle of the road. “This is the craziest thing I’ve ever seen,” says the guy who posted the video, @TheReal_JDavis, who’s from Boston. Why in the world are the birds doing this? They might be performing what’s called a “predator inspection,” says Alan Krakauer, a biologist at t